EP0648518A1 - Card shuffler - Google Patents
Card shuffler Download PDFInfo
- Publication number
- EP0648518A1 EP0648518A1 EP94202784A EP94202784A EP0648518A1 EP 0648518 A1 EP0648518 A1 EP 0648518A1 EP 94202784 A EP94202784 A EP 94202784A EP 94202784 A EP94202784 A EP 94202784A EP 0648518 A1 EP0648518 A1 EP 0648518A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shuffling
- card
- compartment
- playing cards
- cards
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F1/00—Card games
- A63F1/06—Card games appurtenances
- A63F1/14—Card dealers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F1/00—Card games
- A63F1/06—Card games appurtenances
- A63F1/12—Card shufflers
Abstract
Description
- The present invention relates to a device for shuffling playing cards.
- Such devices are known, among others from US-A-5000453.
- Other card shufflers are described in US-A-4513969, US-A-4659082 and US-A-4770421.
- All these machines forming part of the prior art have very complicated constructions, making them expensive, prone to breakdown and difficult of access for service and repair.
- The object of the present invention is to provide such a machine of considerably simpler construction, thus avoiding the drawbacks associated with a complicated construction.
- It is further of the greatest importance that the shuffling process takes place with good quality. This is after all necessary to avoid cheating at the game by cardcounting or other techniques used by practiced players. A good quality of shuffling is moreover conducive to the fairness of the game.
- It should be noted herein that an important application of the card shuffler according to the present invention lies in the use for the game of "Black Jack". In this game, mostly played in casinos and similar establishments, it is important that a stock of shuffled cards is always available, which cards are taken and brought into the game by the dealer dependent on the progress of the game.
- In the case of manual shuffling a quantity of cards, for instance six decks, are shuffled by the dealer before the start of the game, whereafter the game commences. When a part of the total number of cards in the game has been dealt by the dealer, the game is stopped, the cards are collected and reshuffled, whereafter a cutting card is placed into the stack of shuffled cards by a player and the game is resumed until the shuffled cards have been used up to the cutting card.
- The shuffling operations to be performed by the dealer are time-consuming, which is all the more important as the game has to be stopped during shuffling, so that a relatively large part of the available playing time at a gaming table has to be spent on shuffling, which of course has an adverse affect on the obtainable turnover at the table. The use of a cutting card moreover results in only a part, usually about half, of the number of available cards being used.
- The use of a machine shuffler avoids this drawback; the shuffler carries out a constant shuffling process, wherein this is adapted such that there is always a supply of shuffled cards available to the dealer. The used cards can be taken up continuously into the shuffling process, so that the shuffling process can be performed continuously during play. The necessity to interrupt the game for the shuffling process is thus removed. Through the continuous use of the cards the use of a cutting card moreover becomes unnecessary, so that the whole quantity of cards can be used.
- All these objects are achieved by a device for shuffling playing cards, comprising: two shuffling card compartments which can each be placed in a first position and in a second position; a delivery compartment; transporting means for carrying the playing cards from the shuffling compartment located in the first position to the shuffling compartment located in the second position; discharge means for carrying playing cards from the card compartment located in the first position to the delivery compartment; control means for normally activating the transporting means and for otherwise activating the discharge means as determined by algorithm; feed means for feeding the playing cards for shuffling to one of the shuffling compartments.
- The shuffling process applied in this device achieves a high quality of shuffling; even for a practiced player it is not possible to predict which card is likely to come into the game. This enhances the fairness of the game to be played with the shuffled cards.
- It will be apparent that after a period of time the shuffling compartment located in the first position will be emptied by the transporting means and the discharge means. It is of course possible to transfer the cards available in the card compartment present in the second position to the card compartment located in the first position, but according to an attractive preferred embodiment the device comprises means for exchanging the position of both shuffling compartments.
- It will be apparent that this results in an exceptionally attractive construction.
- According to another preferred embodiment the feed means comprise a feed compartment for receiving the playing cards for shuffling in addition to means for carrying playing cards from the feed compartment to the card compartment located in the second position.
- These steps make it possible to place played cards into the feed compartment so that the shuffling compartment can be supplemented from the feed compartment.
- According to another preferred embodiment the control means are adapted for activating the feed means simultaneously with the activation of the discharge means for at least a part of the time of use.
- This step makes it possible to hold as constant as possible the number of cards taking part in the shuffling process; when a card is removed from the shuffling process and supplied to the delivery compartment, a new card is now automatically added to the shuffling process from the feed compartment.
- Other preferred embodiments will be found in the remaining sub-claims.
- The device according to the present invention will subsequently be elucidated with reference to the annexed drawings, in which:
- figure 1 shows a partly broken away perspective view of a card shuffler according to the invention;
- figure 2 is a partly broken away perspective view of the card shuffler depicted in figure 1, wherein the cover is removed;
- figure 3 shows a sectional view of the card shuffler according to the invention in the empty situation;
- figure 4 shows a view corresponding with figure 3 in a partly filled situation;
- figure 5 is a partly broken away top view of the card shuffler according to the invention, wherein the cover is removed;
- figure 6 is a partly broken away detail view of the take-off shoe of the card shuffler according to the invention; and
- figure 7 is a sectional view of the shoe depicted in figure 7.
- The shuffling device 1 shown in figures 1, 2, 3, 4 and 5 comprises a
base plate 2 on which is placed the shuffling mechanism, which shuffling mechanism is closed off by acover 3. Arranged in the cover is a control panel 4 for operating the shuffler and for indicating the operational situation. Further arranged in the cover are anopening 5 through which the cards for shuffling are fed to the shuffling mechanism and a take-off opening 6 through which the shuffled cards can be removed. - The shuffling mechanism will now be elucidated with reference to figures 1, 2, 3, 4 and 5. A
turntable 7 is arranged onbase plate 2 for rotation on a vertical shaft. Further arranged onbase plate 2 is a turntableelectric motor 8 which is provided on its output shaft with a pinion around which is trained abelt 9. Thebelt 9 is likewise trained about the turntable and fixedly attached thereto by means of aclamp 10. - To the turntable are fixed two
walls 11, 12 extending in lengthwise direction and mutually connected in the middle by aconnecting wall 13. At the ends thelongitudinal walls 11, 12 are mutually joined by therespective end walls walls shuffling card compartment 16 and between thewalls shuffling card compartment 17. As a result of it being possible to rotate the turntable, both thefirst shuffling compartment 16 and thesecond shuffling compartment 17 can assume a first and a second position. - On the underside each of the
shuffling compartments respective base plate Guides 20 provided with elongate openings are arranged under the base plates.Sleeves 22 are arranged guidably in theopenings 21 arranged in therelevant guides 20. Thesleeves 22 are each mounted on ashaft 23 received in abearing bush 24.Bearing bushes 24 are each connected to adrive shaft 26 by means of alever 25, wherein each of thedrive shafts 26 extends only over half the length of thepartition wall 13. - Both
drive shafts 26 otherwise extend mutually in line and are rotatably mounted in thepartition wall 13. For each of thedrive shafts 26 is arranged adrive mechanism 27 which is formed by anelectric motor 28 which drives the associateddrive shaft 26 by means of a tooth wheel and worm wheel transmission 29. - The device further comprises on the feed side two
side walls base plate 2 and are mutually joined by a number ofcross connections 32. Bothside walls end wall 33 which also functions as wall of a space in which is accommodated a part of the electronic control circuit for the device and as cooling plate for the components forming part thereof. - Both
side walls rotatable shaft 34 on which are placeddiscs 35. - Placed against
side wall 31 is anelectric motor 36, on the output shaft of which is arranged adrive disc 37, the upper part of which protrudes slightly above thediscs 35 and the cross connection located furthest to the side ofwall 33. Thiscross connection 32, thedrive disc 37 and thediscs 35 together form the bottom of the feed compartment, the walls of which are otherwise formed by thecover 3. Although it is possible to not driveshaft 34, thisshaft 34 is preferably driven by a cord (not shown in the drawing) between a pulley arranged on the carrier disc and a freewheel coupling fixed on theshaft 34. - Arranged against the inside of
wall 30 is anelectric motor 38, the output shaft of which extends through thewall 30. Abelt pulley 39 provided with teeth is arranged on the output shaft. Bothwalls shaft 40 on which are arranged a roller 41 and, outside thewall 30, twopulleys pulleys toothed belt 44. - A
folding sub-frame 45 is arranged aboveturntable 7, this above the level of thelongitudinal walls 11, 12, the connectingwall 13 and bothend walls side plates cross connections 48. - The
sub-frame 45 is further connected hingedly to bothside walls side walls side plates - On the distal end of sub-frame 45 a
support 51 is arranged between bothside plates rods 52 to atransverse connection 48. Acarrier roller 100 is mounted in the support. Therods 52 essentially form only a stop for the downward movement ofsupport 51. The latter is supported as a whole on therod 54. - When the
sub-frame 45 is folded downward thecarrier roller 100 is pressed against the driven carrier roller 41. In order to exert a downward directed force,support 51 is provided withsprings 53 which are wound round arod 54 which connects bothside plates support 51. - Arranged in similar manner on the other side of
cross connection 48 is asupport 55 in which is mounted acarrier roller 56. Thiscarrier roller 56 is also springmounted insub-frame 45 as a result of arrangedsprings 57 which are wound round a shaft 58. - Finally, a
last carrier roller 61 is arranged between bothside plates support 62. - An
electric motor 60 is further arranged hingedly in the sub-frame such that the electric motor is movable to a slight extent in vertical direction. Adrive roller 59 is arranged on the output shaft ofelectric motor 60. - In the space enclosed between the sub-frame in its downward folded state and the rotatable part fixed to the
turntable 7 further extend twocarrier rollers side plates - These
carrier rollers belt pulleys 65, 67 respectively 43 which are fixed to the associated shafts and around which atoothed belt 66 is tensioned. - The description will now focus on the construction of discharge means for the shuffled playing cards. This description is given with reference to figures 6 and 7.
- As can be seen in figures 6 and 7, the
discharge device 68, also known as the "shoe" in gaming jargon, is placed above a part ofbase plate 2.Discharge device 68 is likewise covered by a part of thecover 3. - In essence the
discharge device 68 comprises an obliquely disposedplate 69 fixedly connected to thebase plate 2. Arranged on thisoblique plate 69 is acarriage 70 which is formed by aprismatic body 71 provided on either side withside plates shafts carrier rollers 76, 77 respectively. - Further arranged in the space between the two
side plates electric motor 78, on the output shaft of which is arranged a belt pulley 80. Belt pulleys 81 are arranged on each of theshafts toothed belt 82 is trained around each of thepulleys 81, 80. When theelectric motor 78 rotates, thecarrier rollers 76, 77 are thus driven in rotation. - Finally, a
shaft 83 is arranged on the underside between bothplates freerotating roller 84 is fixed. The dimensioning of the various parts is such that the thus formed construction can move easily over the path formed by the incliningplate 69, wherein the rear part of the construction rests via theroller 84. - A
guide plate 101 is arranged on the upper part of bothside plates guide plate 101 androllers 77 and 76 is formed aguide channel 102. Arranged on the outside ofplates brackets guide plate 101. To this end screws 87 extend through openings arranged for this purpose inguide plate 101 andbrackets 85 respectively 86, wherein on the underside ofscrews 87 are arrangedsprings 88 which are secured by nuts 89. Theguide plate 101 is thus pressed firmly againstbrackets - On the front side, as shown in figure 7, the discharge device is closed off by a
front wall 90 into which is recessed the take-off opening 6. - At diverse locations in the device detection members are arranged for detecting the presence of playing cards. A detection unit (not shown in the drawing) is thus arranged for detecting the presence of cards in the feed compartment and a detection unit is arranged in the shoe to determine how many cards are situated in the shoe.
- In addition the non-driven carrier rollers arranged in the sub-frame are provided with a detector to detect whether more than one card at a time is being transported, which would disrupt normal operation.
- The detection devices are all connected by means of wire connections (not drawn) to a control means formed by a microprocessor and the associated input and output circuits.
- The microprocessor can be accommodated in diverse places in the device, for instance, as described with reference to figure 2, in the space adjacent to end
wall 33. It is however also possible to accommodate the microprocessor or a part of the associated circuits in the space enclosed by thebase plate 2 and the incliningplate 69, as shown in figures 6 and 7 by a printedcircuit board 91. It is otherwise possible to accommodate the microprocessor and the other electronic control components at other positions in the device. - The operation of the device according to the present invention will now be elucidated.
- Point of departure is a starting situation, that is, a situation in which the machine is empty and the machine must initially be filled with cards before it can deliver shuffled playing cards.
- By pressing the
control button 92 on the control panel the machine is set into the filling position. A stack ofcards 93 is subsequently placed in the feed compartment. - Such a situation is shown in figure 4. The control in the form of the microprocessor starts the
drive motor 36 ofdrive disc 37 in addition torollers 41, 100, wherein thecards 93 are gripped one by one on their underside, that is, on their picture side, by thedrive disc 37 and will then be carried through therollers 41, 100. - It is important herein that the
drive disc 37 grips only a single card at a time. When this is not the case and more than one playing card at a time is transported, this is detected and relevant action is undertaken. It is of importance here that between the drive roller and the pinch between thecarrier rollers 100, 41 a chicane is placed in the form of theshaft 34 with thediscs 35 fixed thereto and a connectingrod 32. These elements functioning as guides ensure that thecards 93 are bent into a form such that an individual separation takes place and a possible second card adhering to the bottom card remains behind. - In order to prevent the card entering between
rollers brush 95 is arranged which brakes the movement of thecards 93, as does a stopplate 96. It is noted herein that while the machine is in operation thecarrier rollers - The cards then fall one by one onto the
base plate 19. Themotor 28 herein ensures that the uppermost card always lies at the same level, so that, when the turntable is turned, this card can always be gripped by thedrive disc 59 and the drop height of fed cards is constant. - This process is continued until a determined number of cards has fallen into the shuffling compartment, whereafter the drive motor of the turntable is activated and the
other shuffling compartment 17 is filled with the same number of cards. The turntable is thereafter turned around and this process is continued until the total desired number of cards, for instance 150, is present in both shuffling compartments. - The actual shuffling process can then take place. The uppermost card in the shuffling compartment placed beneath
drive roller 59 is gripped by the drive roller and, subject to a random signal generated by the microprocessor, is fed to the other shuffling compartment or supplied to the discharge means. - The
motor 28 which is coupled to shuffling compartments in the first position ensures that the topmost card can be gripped by thedrive disc 59. - The
drive roller 59 will herein normally turn in clockwise direction, wherein the top card is thus gripped on its top side and fed through betweenrollers - Use is also made here of a chicane in the form of a
wall 97 and across connection 98. Use is additionally made herein of astop plate 96 and brushes 95. At cards determined substantially by chance the rotation direction ofdrive roller 59 will be reversed and this will carry a card away to the side of the discharge device. In a normal situation the control will cause a card to be fed from the feed compartment each time a playing card is supplied to the discharge means. The number of cards in both shuffling compartments will thus be kept equal to the chosen number of for instance 150 cards. - The algorithm, which determines which card is supplied to the discharge card compartment instead of to the other card compartment, herein determines to a great extent the quality of the shuffling.
- This process is continued until the discharge means, in this case the
shoe 68, is entirely filled with playing cards, whereafter the relevant game can commence. - The machine then automatically enters the "play" mode, whereafter the normal shuffling process begins. This shuffling process corresponds with the above described filling process, with the understanding that, during the shuffling process,
cards 93 are continuously present in one of both card compartments 16, 17 which are transferred to the other card compartment, wherein, determined by chance, a card is supplied to thedischarge compartment 68. Each time this happens a card is carried from the feed compartment to one of the shuffling compartments 16, 17 in order to keep as equal as possible the number of cards circulating between the shuffling compartments, as during the filling process. - The control is further adapted such that one of a determined number of cards is always supplied to the discharge means. In addition to determining the quality of shuffling, this number is selected in accordance with the average take-off of playing cards per unit of time.
- When, however, depending on the game situation, the "card consumption" is temporarily greater, the shoe may be in danger of becoming empty. The number of cards in the shoe is detected however and, when the shoe is in danger of emptying, more cards are supplied to the
shoe 68. That is, of each smaller number of cards removed from the shuffling compartment present in the first position, a card is supplied to the shoe and a card is carried from the feed compartment to the shuffling compartment present in the second position. This prevents the game having to be stopped due to a lack of cards. - When, however, the feed compartment has emptied, the control is such that the shuffling process is continued temporarily in the card compartments 16 and 17 with a smaller number of cards, for instance 125. When at a later stage cards once again become available the number of cards is again supplemented to the original number.
- When the machine is taken out of operation, it is of course possible to empty the machine, wherein all cards are carried from the shuffling compartments to the shoe.
- Finally, the operation of the shoe, or discharge means will be considered.
- As shown in figure 7, the cards are supplied between the
rollers guide plate 101 before they enter theguide channel 102. During transport through theguide channel 102 the cards are driven by therollers 76, 77. The card then comes into contact with the stack ofcards 99 already present, whereby the suppliedcard 93 undergoes a force whereby thecarriage 70 is moved upward along theslope 69 and sufficient space becomes available behind the stack ofcards 99 for interposing of the relevant card. - Due to the presence of the
outlet opening 6 it is always easy to remove the foremost card by hand. - Although implementation of the control of the device is not described, a skilled person in the relevant field can deduce how the control can be embodied from the fact that a microprocessor is used and from the functional description.
- It will be apparent that the above construction can be varied in diverse ways without going beyond the scope of the invention.
Claims (16)
- Device for shuffling playing cards, comprising:- two shuffling card compartments which can each be placed in a first position and in a second position,- a delivery compartment,- transporting means for carrying the playing cards from the shuffling compartment located in the first position to the shuffling compartment located in the second position,- discharge means for carrying playing cards from the card compartment located in the first position to the delivery compartment,- control means for normally activating the transporting means and for otherwise activating the discharge means as determined by algorithm,- feed means for feeding the playing cards for shuffling to one of the shuffling compartments.
- Shuffling device as claimed in claim 1, characterized by means for exchanging the position of both shuffling compartments.
- Shuffling device as claimed in claim 1 or 2, characterized in that the feed means comprise a feed compartment for receiving the playing cards for shuffling in addition to means for carrying playing cards from the feed compartment to the card compartment located in the second position.
- Shuffling device as claimed in claim 3, characterized in that the control means are adapted for activating the feed means simultaneously with the activation of the discharge means at least for a part of the time of use.
- Device as claimed in any of the foregoing claims, characterized in that each of the card compartments is formed by four wall elements disposed in a rectangular pattern and extending substantially vertically, wherein the distance between mutually opposite wall elements is at least as large as the dimensions of the playing cards and that in each of the card compartments a base element is present which is movable in substantially vertical direction by means of a lifting electric motor and a lever transmission under the control of the control means.
- Device as claimed in claim 5, characterized in that the control means are adapted for controlling the lifting electric motors such that the uppermost card present in the card compartment is situated at a predetermined level.
- Device as claimed in claim 5 or 6, characterized in that the card compartments are both arranged on a plateau rotatable on a vertical shaft, which plateau is drivable in rotation by means of a rotation electric motor under the control of the control means.
- Device as claimed in any of the foregoing claims, characterized in that at least one of the transporting means and the discharging means comprises a gripping roller of large diameter placed above the first position and drivable in rotation which is adapted for gripping by means of friction on the upper side of the topmost playing card in the card compartment.
- Device as claimed in claim 8, characterized in that the transporting means and the discharging means comprise the same gripping roller which during use as discharging means is drivable in a direction opposed to that during use as transporting means.
- Device as claimed in any of the foregoing claims, characterized in that the feed means comprise a feeding compartment opened at the top which comprises on the underside a second gripping roller of large diameter which is adapted for gripping by means of friction on the underside of the bottommost playing card in the feeding compartment.
- Device as claimed in claim 8, 9 or 10, characterized in that the transporting means, the discharge means and the feed means each comprise a pair of rollers placed one above the other, at least one of which is drivable, and wherein the distance between the pinch of the pair of rollers and the gripping line of the gripping roller and the card for gripping is smaller in the intended transporting direction than the width of the playing card, wherein between the gripping roller and the pair of rollers a chicane is arranged.
- Device as claimed in claim 1, characterized in that of each pair of rollers the upper roller and the gripping roller forming part of the transporting means are fixed in a sub-frame tiltable upward on a horizontal shaft.
- Device as claimed in any of the foregoing claims, characterized in that the discharge means are adapted for supplying the shuffled playing cards to the side of the playing cards present in a delivery holder opposite to the side where the shuffled playing cards are removed from the stack.
- Device as claimed in claim 13, characterized in that the delivery holder comprises a path inclining downward towards the take-off side, on which path a pressure body is movable for pressing on the stack of playing cards present in the delivery holder, and wherein the discharge means are adapted for moving the pressure body temporarily up the slope and placing a playing card between the pressure body and the stack of cards.
- Device as claimed in claim 14, characterized in that the pressure body is provided with means for guiding and driving the playing cards.
- Device as claimed in claim 15, characterized in that the guide means are adapted for bending the playing card after it leaves the pair of rollers forming part of the discharge means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9301771 | 1993-10-13 | ||
NL9301771A NL9301771A (en) | 1993-10-13 | 1993-10-13 | Card shuffler. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0648518A1 true EP0648518A1 (en) | 1995-04-19 |
EP0648518B1 EP0648518B1 (en) | 1998-01-28 |
Family
ID=19863005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94202784A Expired - Lifetime EP0648518B1 (en) | 1993-10-13 | 1994-09-27 | Card shuffler |
Country Status (19)
Country | Link |
---|---|
US (1) | US5356145A (en) |
EP (1) | EP0648518B1 (en) |
JP (1) | JPH09508809A (en) |
KR (1) | KR960704604A (en) |
AT (1) | ATE162729T1 (en) |
AU (1) | AU688425B2 (en) |
BR (1) | BR9407814A (en) |
CA (1) | CA2174121A1 (en) |
CZ (1) | CZ105796A3 (en) |
DE (1) | DE69408256T2 (en) |
DK (1) | DK0648518T3 (en) |
ES (1) | ES2111839T3 (en) |
FI (1) | FI961528A (en) |
GR (1) | GR3026175T3 (en) |
HU (1) | HU217228B (en) |
NL (1) | NL9301771A (en) |
NO (1) | NO961459L (en) |
NZ (1) | NZ276491A (en) |
WO (1) | WO1995010338A1 (en) |
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WO1998014249A1 (en) * | 1996-09-30 | 1998-04-09 | Cranford Tony A | High-capacity automatic playing card shuffler |
EP1429848A1 (en) * | 2001-09-28 | 2004-06-23 | Shuffle Master, Inc. | Card shuffling apparatus with automatic card size calibration |
EP2455144A1 (en) * | 2001-09-28 | 2012-05-23 | Shuffle Master, Inc. | Card shuffling apparatus with automatic card size calibration |
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Also Published As
Publication number | Publication date |
---|---|
JPH09508809A (en) | 1997-09-09 |
BR9407814A (en) | 1997-05-06 |
WO1995010338A1 (en) | 1995-04-20 |
FI961528A0 (en) | 1996-04-04 |
GR3026175T3 (en) | 1998-05-29 |
DE69408256T2 (en) | 1998-05-14 |
HU9600971D0 (en) | 1996-06-28 |
US5356145A (en) | 1994-10-18 |
EP0648518B1 (en) | 1998-01-28 |
NO961459D0 (en) | 1996-04-12 |
KR960704604A (en) | 1996-10-09 |
FI961528A (en) | 1996-06-13 |
NL9301771A (en) | 1995-05-01 |
DK0648518T3 (en) | 1998-09-21 |
ATE162729T1 (en) | 1998-02-15 |
CZ105796A3 (en) | 1996-08-14 |
HUT76149A (en) | 1997-07-28 |
AU688425B2 (en) | 1998-03-12 |
AU1077595A (en) | 1995-05-04 |
NZ276491A (en) | 1998-04-27 |
HU217228B (en) | 1999-12-28 |
DE69408256D1 (en) | 1998-03-05 |
ES2111839T3 (en) | 1998-03-16 |
NO961459L (en) | 1996-06-13 |
CA2174121A1 (en) | 1995-04-20 |
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